- SEAL Sniper 9
- |
- Fabled Heroic Member
Vengeance only leads to an ongoing cycle of hatred.
Well, it doesn't show up because you did it offline, I think. But, I don't think they'll do any achievement scanning to update your service record or legacy.
Or it could be something different. I finished the ODST campaign on Legendary, online, and in my legacy it only says Normal.